From: "Jens Ch. Restemeier" <jenschrr@post.uni-bielefeld.de>
To: Bryan Christianson <bryanc@ihug.co.nz>
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: Porting a driver from x86 to LinucPPC
Date: Fri, 18 Dec 1998 11:46:39 +0100 [thread overview]
Message-ID: <367A328E.9ED@post.uni-bielefeld.de> (raw)
In-Reply-To: l03130300b29d351e3bbc@[172.16.10.14]
Bryan Christianson wrote:
>
> I'm trying to port a device driver from x86 to linuxppc. I am running into
> problems with big/little endian-ness.
>
> The device is a PCI card. Do I need to explicitly translate the data
> between big-endian and little-endian or will the io routines (outl, inl and
> inw) take care of this for me? On x86 I didn't even think about this issue,
> but now I have a feeling that maybe I should have.
I just fixed the NE2000 driver for this.
inl/outl will fix PCI's liddle-endianess to host-endianness. There is
some documentation in include/asm/io.h.
Jens
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next prev parent reply other threads:[~1998-12-18 10:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-12-16 10:06 Porting a driver from x86 to LinucPPC Bryan Christianson
1998-12-18 10:46 ` Jens Ch. Restemeier [this message]
1998-12-19 10:34 ` Bryan Christianson
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